Answer

Yes, generally you may have matcha during Paryushan if it fits the specific vows or tapasya you have taken and if it does not involve any prohibited ingredients.

Explanation

Matcha is powdered green tea. From a Jain perspective, the main things to consider are:

• If you are doing full fasting, then matcha would not be taken.
• If you are doing ekasana or beasana, it depends on the rules you are following and whether drinks are allowed outside the meal time.
• If you have taken a vow to avoid stimulants, caffeine, or luxury foods, then matcha should be avoided.
• If the matcha is mixed with milk, sweeteners, flavors, or packaged additives, check that they are suitable for your Paryushan discipline.
• If you follow strict Paryushan practices, many people avoid items taken mainly for taste or pleasure and keep food very simple.

Spiritual Understanding

Paryushan is a time for self-restraint, simplicity, inner purification, pratikraman, forgiveness, and reducing attachment. So the question is not only “Is matcha technically allowed?” but also:

• Does it support my spiritual discipline?
• Am I taking it for health/need or mainly craving/taste?
• Does it disturb my tapasya or increase attachment?

Takeaway

If you are not fasting and your vow allows tea-like drinks, plain matcha may be acceptable. But for stricter Paryushan observance, it is better to avoid it or ask your guru, sadhu-sadhviji, or knowledgeable family elder according to your tradition.